Peer-reviewed articles 17,970 +


Title: LAND USE-COVER CHANGE TRAJECTORY AND IMPLICATION ON THE AGRICULTURAL AREAS OF SAO PAULO CITY: A GEOINFORMATICS APPROACH
LAND USE-COVER CHANGE TRAJECTORY AND IMPLICATION ON THE AGRICULTURAL AREAS OF SAO PAULO CITY: A GEOINFORMATICS APPROACH

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Chukwudi Nwaogu; Babatunde Alabi; Nasir A. Umar; Bridget E. Diagi; Victor A. Agidi; Chinwe G. Onwuagba; Iheoma E. Mbuka-Nwosu; Chidinma A. Acholonu; Chinonye V. Ekweogu; Chukwuemeka O. Ulor; Chidi P. Ugochukwu; Joseph I. Nwachukwu; Susan I. Ajiere; Simon I. Okwech; Pius Agaji Oko; Mauricio R. Cherubin
10.5593/sgem2024/2.1/s08.17
10.5593/sgem2024/2.1
1314-2704
978-619-7603-69-9
English
24
2.1
•    Prof. DSc. Oleksandr Trofymchuk, UKRAINE 
•    Prof. Dr. hab. oec. Baiba Rivza, LATVIA
Geoinformatics
Agricultural productivity and environmental changes can be greatly affected by agricultural and other land use. Mapping of vegetation and land cover is a fundamental way of managing the natural resources on the earth surface. To determine or study the crop productivities of any geographical location, agricultural land use is one of the crucial clues for reliable information. We aimed to investigate the effects of urbanization on agricultural lands in Sao Paulo city. A 30-year multi-temporal satellite imagery dataset from four distinct years were mapped: 1992 (Landsat TM), 2002 (Landsat ETM+), 2012 (Landsat ETM+), and 2022 (Sentinel) were collected and analyzed using geospatial tools. Identified land use were waterbody, settlement, agricultural land, wetland, and forest. Change detection analysis was performed using Erdas imagine software and future prediction was achieved by applying Idrisi selva 15 software. The result indicated between 1992 and 2022 settlement and wetland increased in areas while agricultural land, forest and waterbody decreased. These observed changes in the spatial pattern of LULC could be attributed to the encroachment and converted to other uses such as settlement and urban agriculture. The overall changes depicted in the evolution matrix and map demonstrated that, because of speculation practices, urbanization has primarily affected agricultural land use. Application of geospatial technologies (remote sensing and GIS) has proved effective in monitoring LULC changes and providing vital information for policy making in Sao Paulo City’s food (in)security and urban sustainable development.
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The study was funded by Sao Paulo Research Foundation (FAPESP) [process numbers: 2021/11757-1; 2023/05122-9, and 2021/10573-4] . Chukwudi Nwaogu is grateful to the FAPESP for the funding (2021/11757-1 and 2023/05122-9), and Cherubin M.R. thanks CNPq for his Research Productivity Fellowship (311787/2021-5). We also give thanks to the Center for Carbon Research in Tropical Agriculture (CCARBON) sponsored by FAPESP (2021/10573-4).
conference
https://doi.org/10.5593/sgem2024/2.1/s08.17
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Proceedings of 24th International Multidisciplinary Scientific GeoConference SGEM 2024
24th International Multidisciplinary Scientific GeoConference SGEM 2024, 1 - 7 July, 2024
Proceedings Paper
STEF92 Technology
International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM
SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci and Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts and Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci and Arts; Acad Sci Moldova; Montenegrin Acad Sci and Arts; Georgian Acad Sci; Acad Fine Arts and Design Bratislava; Russian Acad Arts; Turkish Acad Sci.
131-138
1 - 7 July, 2024
website
9929
Urbanization, land use change, agricultural systems, GIS, Sao Paulo-Brazil.

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